/* ============================================================
   PolloCheff Inventario — layout.css
   Estructura de la app: sidebar, topbar, contenido, dashboard
   y pantalla de login.
   ============================================================ */

/* ---------- Estructura general ---------- */
.app-shell { display: flex; min-height: 100vh; }

/* ---------- Sidebar ---------- */
.sidebar {
    width: var(--sidebar-width);
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    position: fixed;
    top: 0; left: 0; bottom: 0;
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform var(--transition-base);
}
.sidebar-brand {
    height: auto;
    min-height: var(--topbar-height);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: var(--space-2) var(--space-4);
    border-bottom: 1px solid var(--color-border);
    font-weight: 700;
    font-size: 15px;
    flex-shrink: 0;
}
.brand-logo {
    height: 72px;
    width: auto;
    object-fit: contain;
}
.logo {
    width: 34px; height: 34px;
    border-radius: 9px;
    background: linear-gradient(135deg, #ad3202, #b71c1c);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.sidebar-nav { flex: 1; overflow-y: auto; padding: var(--space-3); }
.nav-section { margin-bottom: var(--space-4); }
.nav-section-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    padding: 0 var(--space-3);
    margin-bottom: var(--space-1);
}
.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: background var(--transition-fast), color var(--transition-fast);
}
.nav-link:hover { background: var(--color-surface-hover); color: var(--color-text); text-decoration: none; }
.nav-link.active { background: var(--color-primary-soft); color: var(--color-primary); font-weight: 600; }
.nav-link .icon { flex-shrink: 0; }
.sidebar-footer { padding: var(--space-3); border-top: 1px solid var(--color-border); flex-shrink: 0; }

/* ---------- Área principal ---------- */
.app-main { flex: 1; margin-left: var(--sidebar-width); display: flex; flex-direction: column; min-width: 0; }

.topbar {
    height: var(--topbar-height);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: 0 var(--space-5);
    position: sticky;
    top: 0;
    z-index: 90;
}
.topbar-left { display: flex; align-items: center; gap: var(--space-3); min-width: 0; }
.topbar-title { font-size: 18px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.topbar-actions { display: flex; align-items: center; gap: var(--space-2); }

.menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-secondary);
    padding: 8px;
    border-radius: var(--radius-md);
}
.menu-btn:hover { background: var(--color-surface-hover); color: var(--color-text); }

/* Menú de usuario */
.user-menu { position: relative; }
.user-menu-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 5px 8px;
    border-radius: var(--radius-md);
    cursor: pointer;
    background: none;
    border: none;
}
.user-menu-btn:hover { background: var(--color-surface-hover); }
.avatar {
    width: 34px; height: 34px;
    border-radius: var(--radius-full);
    background: var(--color-primary-soft);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
}
.user-menu-name { font-size: 14px; font-weight: 500; }
.user-menu-role { font-size: 12px; color: var(--color-text-muted); }
.user-menu-info { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.25; }
.user-menu-dropdown {
    position: absolute;
    right: 0;
    top: calc(100% + 6px);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    padding: var(--space-2);
    display: none;
    z-index: 200;
}
.user-menu-dropdown.open { display: block; }
.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-size: 14px;
}
.dropdown-item:hover { background: var(--color-surface-hover); text-decoration: none; }
.dropdown-item.danger { color: var(--color-danger); }
.dropdown-item.danger:hover { background: var(--color-danger-soft); }

/* ---------- Contenido ---------- */
.app-content { padding: var(--space-6); flex: 1; }

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    margin-bottom: var(--space-5);
    flex-wrap: wrap;
}
.page-title { font-size: 22px; font-weight: 700; }
.page-subtitle { color: var(--color-text-secondary); font-size: 14px; margin-top: 2px; }
.page-actions { display: flex; gap: var(--space-2); flex-wrap: wrap; }

/* ---------- Dashboard ---------- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}
.stat-card { padding: var(--space-5); display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-3); }
.stat-label { font-size: 13px; color: var(--color-text-secondary); font-weight: 500; }
.stat-value { font-size: 30px; font-weight: 700; margin-top: 4px; line-height: 1; }

/* Tarjetas de estadística como enlaces (Panel): toda la tarjeta es clicable */
.stat-link {
    color: inherit;
    text-decoration: none;
    cursor: pointer;
    transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
}
.stat-link:hover {
    box-shadow: var(--shadow-strong);
    transform: translateY(-2px);
    border-color: var(--color-primary-border);
    text-decoration: none;
}
.stat-link:hover .stat-label::after { content: ' →'; }
.stat-link .stat-icon { transition: transform var(--transition-fast); }
.stat-link:hover .stat-icon { transform: scale(1.08); }
.stat-link:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

.stat-icon {
    width: 44px; height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.stat-icon.primary { background: var(--color-primary-soft); color: var(--color-primary); }
.stat-icon.success { background: var(--color-success-soft); color: var(--color-success); }
.stat-icon.warning { background: var(--color-warning-soft); color: var(--color-warning); }
.stat-icon.danger { background: var(--color-danger-soft); color: var(--color-danger); }

.dashboard-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }

/* ---------- Login ---------- */
.auth { display: flex; min-height: 100vh; }
.auth-brand {
    flex: 1;
    background: linear-gradient(135deg, #ad3202 0%, #b71c1c 100%);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-8);
}
.auth-brand-inner { max-width: 420px; }
.auth-logo {
    width: 260px;
    height: auto;
    object-fit: contain;
    margin-bottom: var(--space-4);
}
.auth-brand .logo { width: 56px; height: 56px; border-radius: 14px; background: rgba(255, 255, 255, 0.15); }
.auth-brand h1 { font-size: 28px; margin: var(--space-4) 0 var(--space-2); }
.auth-brand p { color: rgba(255, 255, 255, 0.82); font-size: 16px; }
.auth-form {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
    background: var(--color-bg);
}
.auth-card { width: 100%; max-width: 400px; }
.auth-card .logo-mobile { display: none; height: 56px; width: auto; object-fit: contain; }
.auth-card h2 { font-size: 24px; margin-bottom: 4px; }
.auth-card .text-muted { margin-bottom: var(--space-5); }

/* ============================================================
   Barra de navegación inferior (móvil).
   Oculta en escritorio; se muestra en responsive.css (≤768px).
   ============================================================ */
.bottom-nav {
    display: none;
    position: fixed;
    left: 0; right: 0; bottom: 0;
    z-index: 95;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    box-shadow: 0 -4px 20px rgba(37, 25, 19, 0.08);
    padding-bottom: env(safe-area-inset-bottom);
}
.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    flex: 1;
    min-height: 60px;
    padding: 6px 4px;
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-family: var(--font-label);
    font-size: 11px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: color var(--transition-fast), background var(--transition-fast);
    -webkit-tap-highlight-color: transparent;
}
.bottom-nav-item:hover { background: var(--color-surface-hover); text-decoration: none; }
.bottom-nav-item .icon { transition: transform var(--transition-fast); color: inherit; }

/* Colores por acción: se distinguen al instante (verde=entrar, rojo=sacar) */
.bn-entry { color: var(--color-success); }
.bn-exit { color: var(--color-danger); }

/* Ítem en uso: pill de fondo suave + color reforzado */
.bottom-nav-item.active { background: var(--color-primary-soft); color: var(--color-primary); }
.bottom-nav-item.active .icon { transform: translateY(-1px); }
.bn-panel.active,
.bn-stock.active { background: var(--color-primary-soft); color: var(--color-primary); }
.bn-entry.active { background: var(--color-success-soft); color: var(--color-success); }
.bn-exit.active { background: var(--color-danger-soft); color: var(--color-danger); }